Rich
For some reason the brake light switch does not like silicone fluid;
this problem of brake switch failure with silicone fluid has come up several
times here. You would have to purge the system of silicone fluid and
change the brake switch to restore the system.
I went to a mechanical switch mostly because I installed cruise
control. The original brake switch did not react quickly enough for me with
cruise control. I also looked at this as a safety issue and I wanted my
brake lights to come on anytime I touched the brake pedal. I did not want
to be slowly rolling to a stop with light brake pedal and NO brake lights
which is possible with just the original brake switch.
I currently have a 1991 Ford Escort brake switch in my Tiger; I'm
sure there are other switch that will work too. You have to make a bracket
to hold the switch and I had to take the Escort switch apart to reduce it's
internal spring force which involved removing the heavier spring force of
the 2 springs inside the switch. I also epoxyed a 1/2" diameter piece of
heavy plastic to the brake pedal to give the switch a pad to work against.
Wire the switch in parallel with the original switch.
Ron Fraser
-----Original Message-----
From: tigers-bounces@autox.team.net [mailto:tigers-bounces@autox.team.net]
On Behalf Of Richard
Sent: Monday, October 12, 2009 9:07 AM
To: Tiger List
Subject: [Tigers] Brake Switch
I just noticed thar my MKII now required very heavy pressure on the pedal to
turn on the brake lights. I have silicone fluid in the system now, would
changing back to GTLMA, and or, replacing the brake light switch solve the
problem. Or is Ron Fraser's post to change to a mechanical switch the way
to go?
Thanks Rich
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